EN 1.4855 (GX40CrNiSiNb24-24) Cast Stainless Steel
Other Steels
Property Overview
Density7.8g/cm³
Elastic Modulus200GPa
Tensile Strength450MPa
Yield Strength250MPa
Brinell Hardness150HB
Maximum Service Temperature1050°C
Chemical Composition
C
0.3 to 0.5%
CR
23 to 25%
NI
23 to 25%
MO
0 to 0.5%
MN
0 to 2.0%
SI
1.0 to 2.5%
P
0 to 0.040%
S
0 to 0.030%
NB
0.8 to 1.8%
FE
42.6 to 51.9%
Mechanical
A - Min. elongation at fracture (%)
4
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
4.6 %
Fatigue Strength
120 MPa
Poisson's Ratio
0.28
R p0.2 0.2% proof strength (MPa)
220
Rm - Tensile strength (MPa)
450
Shear Modulus
77 GPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
250 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
150
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Maximum Temperature: Corrosion
610 °C
Maximum Temperature: Mechanical
1050 °C
Melting Completion (Liquidus)
1400 °C
Melting Onset (Solidus)
1350 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
14 W/m-K
Thermal Diffusivity
3.7 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
11 points
Calculated
PREN (Pitting Resistance)
25
Resilience: Ultimate (Unit Rupture Work)
19 MJ/m 3
Resilience: Unit (Modulus of Resilience)
160 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
34 % relative
Embodied Carbon
5.9 kg CO 2 /kg material
Embodied Energy
85 MJ/kg
Embodied Energy
85 MJ/kg 37 x 10 3 BTU/lb
Embodied Water
200 L/kg
Embodied Water
200 L/kg 23 gal/lb
Registered Designations & Aliases
1.48551.4855EN 1.4855 (GX40CrNiSiNb24-24) Cast Stainless SteelGX40CrNiSiNb24-24GX40CrNiSiNb24-24
Standards
EN 10295 EN 10295: 2002 Heat resistant steel castings
EN 10295 EN 10295: Heat Resistant Steel Castings